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RESEARCH PAPERS: Forced Convection

Two-Dimensional Modeling of Heat Transfer Through Sandwich Plates With Inhomogeneous Boundary Conditions on the Faces

[+] Author and Article Information
Y. Murer, P. Millan

ONERA-DMAE, 2, avenue Edouard Belin, BP 4025, F-31055 Toulouse Cedex 4 France

J. Heat Transfer 120(3), 606-616 (Aug 01, 1998) (11 pages) doi:10.1115/1.2824318 History: Received June 18, 1997; Revised April 25, 1998; Online December 05, 2007

Abstract

This paper presents a thermal model describing heat transfer in multispan sandwich rectangular plates. The model is time-dependent and two-dimensional. Complex thermal phenomena occurring in light cores (honeycomb) and thermal contact resistance are taken into account in the model. Particular attention is paid to the boundary conditions on the faces of the plate: radiative and nonuniform convective exchange are taken into account. The global temperature solution for stationary cases is developed on trigonometric and exponential functions bases. The properties of the Laplace transform are used to solve time-dependent cases. Validation experiments are carried out in a wind tunnel ring for two-span plates submitted to convective exchanges on one face; the same configuration is reproduced for an aluminum sandwich plate in an industrial set-up bench. Experimental results agree well with the numerical simulation.

Copyright © 1998 by The American Society of Mechanical Engineers
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